01-25-2011
Changing rights without touching user and group?
Hello,
I have a small problem and would be happy if someone could help me to find a solution:
A machine ("server") makes backups of different computers ("clients") using rsync. Users and groups are keept, so that it's possible to copy them back to the client if required. The number of groups and users changes every day. But how can a support member access one of these files on the server? Either the support user has to get root-rights, but this is not a very secure solution or I run a chown after each backup - but this would make the backup unusable, because it can not be copied back 1:1.
I guess there is no chance to give root rights to the support group which just takes effect on one folder containing all the backups?
Any ideas? Thanks!
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bup(1) General Commands Manual bup(1)
NAME
bup - Backup program using rolling checksums and git file formats
SYNOPSIS
bup [global options...] <command> [options...]
DESCRIPTION
bup is a program for making backups of your files using the git file format.
Unlike git(1) itself, bup is optimized for handling huge data sets including individual very large files (such a virtual machine images).
However, once a backup set is created, it can still be accessed using git tools.
The individual bup subcommands appear in their own man pages.
GLOBAL OPTIONS
--version
print bup's version number. Equivalent to bup-version(1)
-d, --bup-dir=BUP_DIR
use the given BUP_DIR parameter as the bup repository location, instead of reading it from the $BUP_DIR environment variable or
using the default ~/.bup location.
COMMONLY USED SUBCOMMANDS
bup-fsck(1)
Check backup sets for damage and add redundancy information
bup-ftp(1)
Browse backup sets using an ftp-like client
bup-fuse(1)
Mount your backup sets as a filesystem
bup-help(1)
Print detailed help for the given command
bup-index(1)
Create or display the index of files to back up
bup-on(1)
Backup a remote machine to the local one
bup-restore(1)
Extract files from a backup set
bup-save(1)
Save files into a backup set (note: run "bup index" first)
bup-web(1)
Launch a web server to examine backup sets
RARELY USED SUBCOMMANDS
bup-damage(1)
Deliberately destroy data
bup-drecurse(1)
Recursively list files in your filesystem
bup-init(1)
Initialize a bup repository
bup-join(1)
Retrieve a file backed up using bup-split(1)
bup-ls(1)
Browse the files in your backup sets
bup-margin(1)
Determine how close your bup repository is to armageddon
bup-memtest(1)
Test bup memory usage statistics
bup-midx(1)
Index objects to speed up future backups
bup-newliner(1)
Make sure progress messages don't overlap with output
bup-random(1)
Generate a stream of random output
bup-server(1)
The server side of the bup client-server relationship
bup-split(1)
Split a single file into its own backup set
bup-tick(1)
Wait for up to one second.
bup-version(1)
Report the version number of your copy of bup.
SEE ALSO
git(1) and the README file from the bup distribution.
The home of bup is at <http://github.com/apenwarr/bup/>.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown- bup(1)